Question
The mass of 10 story books and 7 magazines is 2.35 kg. The mass of 4 story books and 7 magazines is 1.57 kg. Find the mass of each magazine.
4 m

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The mass of 10 story books and 7 magazines is 2.35 kg. The mass of 4 story books and 7 magazines is 1.57 kg. Find the mass of each magazine.